Home / 287,897,549,409.79-397,107,314,770.46-185,144,575,421.43

Finding the Fourth Proportional to 287,897,549,409.79, 397,107,314,770.46 and 185,144,575,421.43

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Solution

The fourth proportional to 287,897,549,409.79, 397,107,314,770.46 and 185,144,575,421.43 is: 255,376,488,409.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,897,549,409.79 : 397,107,314,770.46 = 185,144,575,421.43 : x
  2. Step 2: Convert to fraction form
    287,897,549,409.79/397,107,314,770.46 = 185,144,575,421.43/x
  3. Step 3: Cross multiply
    287,897,549,409.79x = 397,107,314,770.46 × 185,144,575,421.43
  4. Step 4: Simplify right side
    287,897,549,409.79x = 73,522,265,189,920,979,025,920
  5. Step 5: Solve for x
    x = 73,522,265,189,920,979,025,920/287,897,549,409.79
  6. Step 6: Final answer
    x = 255,376,488,409.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.